linux-kernel - Re: [PATCH v2 1/2] dt-bindings: cache: add specific RZ/Five compatible to ax45mp

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Message-ID: <CA+V-a8sKAVEZDOxgok94YHWdE9Mgw-z3DRa8UTSf=myxe5O9pA@mail.gmail.com>
Date: Tue, 13 May 2025 08:42:15 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Conor Dooley <conor@...nel.org>
Cc: linux-renesas-soc@...r.kernel.org, 
	Conor Dooley <conor.dooley@...rochip.com>, Ben Zong-You Xie <ben717@...estech.com>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Geert Uytterhoeven <geert+renesas@...der.be>, Magnus Damm <magnus.damm@...il.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v2 1/2] dt-bindings: cache: add specific RZ/Five
 compatible to ax45mp

On Mon, May 12, 2025 at 3:12 PM Conor Dooley <conor@...nel.org> wrote:
>
> From: Conor Dooley <conor.dooley@...rochip.com>
>
> When the binding was originally written, it was assumed that all
> ax45mp-caches had the same properties etc. This has turned out to be
> incorrect, as the QiLai SoC has a different number of cache-sets.
>
> Add a specific compatible for the RZ/Five for property enforcement and
> in case there turns out to be additional differences between these
> implementations of the cache controller.
>
> Acked-by: Ben Zong-You Xie <ben717@...estech.com>
> Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
> ---
>  .../devicetree/bindings/cache/andestech,ax45mp-cache.yaml     | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Cheers,
Prabhakar

> diff --git a/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml b/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml
> index d2cbe49f4e15f..82668d327344e 100644
> --- a/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml
> +++ b/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml
> @@ -28,6 +28,7 @@ select:
>  properties:
>    compatible:
>      items:
> +      - const: renesas,r9a07g043f-ax45mp-cache
>        - const: andestech,ax45mp-cache
>        - const: cache
>
> @@ -70,7 +71,8 @@ examples:
>      #include <dt-bindings/interrupt-controller/irq.h>
>
>      cache-controller@...00000 {
> -        compatible = "andestech,ax45mp-cache", "cache";
> +        compatible = "renesas,r9a07g043f-ax45mp-cache", "andestech,ax45mp-cache",
> +                     "cache";
>          reg = <0x13400000 0x100000>;
>          interrupts = <508 IRQ_TYPE_LEVEL_HIGH>;
>          cache-line-size = <64>;
> --
> 2.45.2
>
>